Territory



' A. UREN. SNATGH BLOCK.

(No Medel.)

No.` 402,208. Patented Apr. 30, 1889.

Fig. 2 is an edge view. Fig. `3 is a detail of the head e under anycircumstances.

UNITED STATES PATENT OEEicE..v

ANDREWT UREN, OF. SEATTLE, IASHINGTON TERRITORY.

BLOCK.

SPECIFICATION forming part of Letters Patent No. 402,208, dated April30, 1889.

Serial No. 282,745. (No model.)

To all whom it may concern:

Be it known thatI I, ANDREW UREN, of Seattle, in the county of King andTerritory of Washington, have invented certain new and usefulImprovements in Snatch-Blocks; and I do hereby declare the following tobe a full, clear, and eXact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same. i

Myinvention relates'to that class of snatchblocks which have one sidepartly open for theready insertion or removal of the rope.

My invention consists in details of construction described below, andpointed out in th claims.

In the drawings, Figure l is a side view.

the sheave-bolt, partly in section to show the spring-latch.

Like letters refer to like parts.

A is the snatch-block generally, of which B is the hook,O thecross-head, D the sheave, and E the sheave-bolt. Said bolt has at oneend the usual fastening-nut, e, and at the other an integral head, c',which latter may be of any desirable shape. lVithin said head e is alat-ch, h, operated by spring i, which is held in Aplace by a shortscrew, j. The latch is round at the inner end and is shouldered at 7c,which prevents the latch from leaving entirely (See Fig.

F represents the closed side or cheek ot' the block, and F is a rigidstrap outside of it. The other cheek side, F2, does not extend to thecross-head, but leaves an opening, lr,which, when uncovered, allows therope to be quickly inserted. In order that the opening r may beuncoveredto insert the rope and securely and quickly closed without having toslacken the ropefto bring the block toward the hook, a swinging strap,Fis provided. The upper end of it is provided with an opening, f, whichshould be of such shape as to fit snugly over ing the strap securely andautomatically in position. To open the block, the latch is pushed backby the thumb and the strap lifted by the index-finger of the same hand,after which the strap will fall or can be swung away, as shown in Fig.l, and leave openingr uncovered.

Having fully described my invention, what I claim, and desire to secureby Letters Pat-ent, 1s

l. In a snatclrblock having one side partly open, the combination, withthe sheave-bolt havinga head, e', and the crosshead having one of itsrivet ends so extended beyond said open side as to give room for thestrap to have lateral and swinging movement, of the said strap pivotedto the cross-head and provided with an opening in its lower end forfitting over said bolt-head, as set forth.

' 2. In a snatch-block provided with an opening at one side for theinsertion of the rope,

substantially as shown, the combination, with the said open side and thesheave-bolt provided with a head, of a swinging strap having an openingto fit over said head, the latter being provided with an automatic latchfor quickly releasing or locking down said strap, as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

ANDRET IIR-EN.

VVitn esses:

GEO. KINNEAR, JOHN R. KINNEAR.

